Poor constant propagation through destructuring assignments

Google closure struggles with constant propagation through destructing assignments, which, unfortunately happens very frequently in modern js code.

```javascript filename:a.js
const { A: a, B: b } = { A: 1, B: 2 }
console.log(a, b);
```
`google-closure-compiler --js a.js -O ADVANCED` outputs
```javascript
const {g:a,h:b}={g:1,h:2};console.log(a,b);
```

Many function call happen through "object pattern" parameters in modern js and google closure does no constant propagation through them nor does it have "re-write to normal params" kind of pass.